Information
Accession GMS-65-112 

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TitleA common molecular mechanism underlying Cornelia de Lange and CHOPS syndromes
Submit date2025-04-01 18:26:35
Last update date2025-04-02 15:14:32
Contact GMSuite GENOMEMODALITY
gmsuite AT hgc.jp
The University of Tokyo
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Total file size2.40 GB
Keywords Disease CHOPS CdLS Nuclear-scale AFF4 
NELFC RAD21 NIPBL BRD4 
 Study
Experiment type Genome binding/occupancy profiling by high throughput sequencing
Summary For the loading onto chromosomes, cohesin requires the cohesin loader complex formed by NIPBL and MAU2. Cornelia de Lange syndrome (CdLS) is a rare, genetically heterogeneous disorder affecting multiple organs and systems during development, caused by mutations in NIPBL gene, as well as in genes encoding cohesin, a chromatin regulator, BRD4, and cohesin-related factors. CHOPS syndrome that phenotypically overlaps with CdLS is caused by gene mutations of a super elongation complex (SEC) core component, AFF4. In both patient cells, we found a decrease in cohesin, NIPBL, BRD4, and H3K27ac in most enhancers with enhancer-promoter loop attenuation. In contrast, TADs were maintained in both patient cells. 
Citation(s) https://pubmed.ncbi.nlm.nih.gov/39983729/
https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE277780
 Experiment
OrganismHuman
Cell (Tissue) 293FT
Protocol Chromatin immunoprecipitation was performed as detailed in Nakato et al. (Nature Communications (2023)14:5647). Briefly, human culture cells were crosslinked with 1 % formaldehyde for 10 minutes at room temperature. Chromatin was then sheared by sonication (Branson Sonifier 250D) and combined with mouse spike-in chromatin.

The immunoprecipitation was performed overnight at 4°C with an antibody conjugated to Dynabeads Protein A or B (Thermo Fisher Scientific, 10002D or 10004D). After completing the immunoprecipitation and reversing crosslinks, the DNA was purified.

Sequencing library was prepared for sequencing using the NEBNext Ultra II DNA Library Prep Kit for Illumina (New England Biolabs, E7645) according to manufacturer's instructions.
Data processing Sequenced reads were aligned to hg38 and mm10 using Bowtie version 1.2.2 with the options “-n2 -m1”.
The uniquely mapped reads were used for subsequent analysis.
BigWig files (100-bp bin) were generated by DROMPA version 3.7.2.
The read distribution is normalized based on the number of reads derived from the mouse spike-in.
BigWig files (100-bp bin) of the normalized read distribution.
 Analysis
[745] RAD21 in wild-type cells
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Human (hg38); ChIP-Seq

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GSM8529572_RAD21_ChIP_FT_control.100.bigwig (151.95 MB)  
[744] RAD21 in NIPBL-mutated cells
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Human (hg38); ChIP-Seq

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GSM8529573_RAD21_ChIP_NIPBLmut.100.bigwig (151.69 MB)  
[746] NIPBL in wild-type cells
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Human (hg38); ChIP-Seq

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GSM8529574_NIPBL_ChIP_FT_control.100.bigwig (153.77 MB)  
[747] NIPBL in NIPBL-mutated cells
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Human (hg38); ChIP-Seq

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GSM8529575_NIPBL_ChIP_NIPBLmut.100.bigwig (153.26 MB)  
[748] BRD4 in wild-type cells
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Human (hg38); ChIP-Seq

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GSM8529576_BRD4_ChIP_FT_control.100.bigwig (149.17 MB)  
[749] BRD4 in NIPBL-mutated cells
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Human (hg38); ChIP-Seq

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GSM8529577_BRD4_ChIP_NIPBLmut.100.bigwig (148.86 MB)  
[750] H3K27ac in wild-type cells
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Human (hg38); ChIP-Seq

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GSM8529578_H3K27ac_ChIP_FT_control.100.bigwig (137.23 MB)  
[751] H3K27ac in NIPBL-mutated cells
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Human (hg38); ChIP-Seq

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GSM8529579_H3K27ac_ChIP_NIPBLmut.100.bigwig (135.98 MB)  
[756] Input in wild-type cells (replicate 1)
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Human (hg38); ChIP-Seq

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GSM8529580_input_1_FT_control.100.bigwig (153.15 MB)  
[757] Input in NIPBL-mutated cells (replicate 1)
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Human (hg38); ChIP-Seq

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GSM8529581_input_1_NIPBLmut.100.bigwig (148.66 MB)  
[754] AFF4 in wild-type cells
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Human (hg38); ChIP-Seq

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GSM8529582_AFF4_ChIP_FT_control.100.bigwig (157.90 MB)  
[755] AFF4 in NIPBL-mutated cells
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Human (hg38); ChIP-Seq

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GSM8529583_AFF4_ChIP_NIPBLmut.100.bigwig (154.75 MB)  
[752] NELFC in wild-type cells
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Human (hg38); ChIP-Seq

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GSM8529584_NELFC_ChIP_FT_control.100.bigwig (153.47 MB)  
[753] NELFC in NIPBL-mutated cells
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Human (hg38); ChIP-Seq

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GSM8529585_NELFC_ChIP_NIPBLmut.100.bigwig (149.35 MB)  
[758] Input in wild-type cells (replicate 2)
Browse
Human (hg38); ChIP-Seq

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GSM8529586_input_2_FT_control.100.bigwig (150.44 MB)  
[759] Input in NIPBL-mutated cells (replicate 2)
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Human (hg38); ChIP-Seq

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GSM8529587_input_2_NIPBLmut.100.bigwig (148.85 MB)  
[760] no description
GraphicalAbstract.png (303.18 KB)  
 Supplements [download all]
[745] GSM8529572_RAD21_ChIP_FT_control.100.bigwig
 RAD21 in wild-type cells
 application/octet-stream 151.95 MB MD5: ca1759b7ef4688fcc75107ac33d40048
[744] GSM8529573_RAD21_ChIP_NIPBLmut.100.bigwig
 RAD21 in NIPBL-mutated cells
 application/octet-stream 151.69 MB MD5: d91f601e3ba049a40219d44c7f1d7cb0
[746] GSM8529574_NIPBL_ChIP_FT_control.100.bigwig
 NIPBL in wild-type cells
 application/octet-stream 153.77 MB MD5: 76e6fc6de5bb062526bd33a18224d8b0
[747] GSM8529575_NIPBL_ChIP_NIPBLmut.100.bigwig
 NIPBL in NIPBL-mutated cells
 application/octet-stream 153.26 MB MD5: 5d2e2e53b58d84b2d248b047194d1865
[748] GSM8529576_BRD4_ChIP_FT_control.100.bigwig
 BRD4 in wild-type cells
 application/octet-stream 149.17 MB MD5: d8c48ff0dc25c3e297f4864ac4ea15db
[749] GSM8529577_BRD4_ChIP_NIPBLmut.100.bigwig
 BRD4 in NIPBL-mutated cells
 application/octet-stream 148.86 MB MD5: 6c777ae6d1415e96225b6f5c9c3a0216
[750] GSM8529578_H3K27ac_ChIP_FT_control.100.bigwig
 H3K27ac in wild-type cells
 application/octet-stream 137.23 MB MD5: ef2f498cf74531e4c77a552becc8fc56
[751] GSM8529579_H3K27ac_ChIP_NIPBLmut.100.bigwig
 H3K27ac in NIPBL-mutated cells
 application/octet-stream 135.98 MB MD5: 2aaa5c021f2f8feac1fe204e1b31a01a
[756] GSM8529580_input_1_FT_control.100.bigwig
 Input in wild-type cells (replicate 1)
 application/octet-stream 153.15 MB MD5: af93540b592ab49ec7b0b61770b638b7
[757] GSM8529581_input_1_NIPBLmut.100.bigwig
 Input in NIPBL-mutated cells (replicate 1)
 application/octet-stream 148.66 MB MD5: f8ae0408a1ff2d06b4be0e320a71882b
[754] GSM8529582_AFF4_ChIP_FT_control.100.bigwig
 AFF4 in wild-type cells
 application/octet-stream 157.90 MB MD5: 1d1a5539b16c25447357a48083fd6724
[755] GSM8529583_AFF4_ChIP_NIPBLmut.100.bigwig
 AFF4 in NIPBL-mutated cells
 application/octet-stream 154.75 MB MD5: 49a83f1bdf4bb0d5f2149d5a9a788924
[752] GSM8529584_NELFC_ChIP_FT_control.100.bigwig
 NELFC in wild-type cells
 application/octet-stream 153.47 MB MD5: 765bcf9279e06eab5f6169aa5898f74f
[753] GSM8529585_NELFC_ChIP_NIPBLmut.100.bigwig
 NELFC in NIPBL-mutated cells
 application/octet-stream 149.35 MB MD5: 3b5e4b802a72830109ee24183cc7fe58
[758] GSM8529586_input_2_FT_control.100.bigwig
 Input in wild-type cells (replicate 2)
 application/octet-stream 150.44 MB MD5: 21a961b643f5316fd525837310501d2b
[759] GSM8529587_input_2_NIPBLmut.100.bigwig
 Input in NIPBL-mutated cells (replicate 2)
 application/octet-stream 148.85 MB MD5: b25d061388d56efb9f6a604ad54bf66e
[760] GraphicalAbstract.png
 no description
 image/png 303.18 KB MD5: 427c61b498e071d6be8da637827ca2e9